Tsis ntev los no, Nokia Bell Labs tshaj tawm tias nws cov kws tshawb fawb tau teeb tsa lub ntiaj teb cov ntaub ntawv rau qhov siab tshaj plaws ntawm ib tus neeg nqa khoom me ntsis ntawm tus qauv ib hom kev kho qhov muag ntawm 80 km, nrog qhov siab tshaj plaws ntawm 1.52 Tbit / s, uas sib npaug rau kev xa tawm 1.5 lab YouTube. yeeb yaj kiab tib lub sijhawm.Nws yog plaub npaug ntawm 400G technology tam sim no.Cov ntaub ntawv ntiaj teb no thiab lwm yam kev hloov kho kho qhov muag yuav txuas ntxiv txhim kho Nokia lub peev xwm los tsim 5G tes hauj lwm kom tau raws li cov ntaub ntawv, muaj peev xwm, thiab latency xav tau ntawm kev lag luam Internet ntawm Yam thiab cov neeg siv khoom siv.
Marcus Weldon, Chief Technology Officer ntawm Nokia thiab Thawj Tswj Hwm ntawm Nokia Bell Labs, tau hais tias: “Txij li thaum tsim cov khoom siv kho qhov muag uas tsis tshua muaj hluav taws xob thiab lwm yam khoom siv kho qhov muag 50 xyoo dhau los.Los ntawm thawj 45Mbit / s system mus rau niaj hnub no 1Tbit / s system, Nws tau nce ntau dua 20,000 zaug hauv 40 xyoo thiab tsim lub hauv paus ntawm qhov peb paub hauv Is Taws Nem thiab cov zej zog digital.Lub luag haujlwm ntawm Nokia Bell Labs ib txwm ua los tawm tsam cov kev txwv thiab rov txhais cov kev txwv uas tuaj yeem ua tau.Peb cov ntaub ntawv tshiab hauv ntiaj teb no hauv kev tshawb fawb kho qhov muag tau ua pov thawj ib zaug ntxiv Peb tab tom tsim cov tes hauj lwm nrawm dua thiab muaj zog dua los tsim lub hauv paus rau kev hloov pauv kev lag luam tom ntej. "Lub Nokia Bell Labs Optical Network Tshawb Fawb Pawg coj los ntawm Fred Buchali tsim ib qho kev thauj khoom me ntsis txog li. 1.52 Tbit / s.Cov ntaub ntawv no yog tsim los ntawm kev siv lub cim tshiab 128Gigasample / thib ob converter uas tuaj yeem tsim cov cim ntawm tus nqi ntawm 128Gbaud, thiab cov ntaub ntawv tus nqi ntawm ib lub cim tshaj 6.0 khoom / cim / polarization.Qhov kev ua tiav no tau tsoo 1.3Tbit / s cov ntaub ntawv tsim los ntawm pab pawg hauv lub Cuaj Hli 2019.
Nokia Bell Labs kws tshawb fawb Di Che thiab nws pab neeg kuj tau teeb tsa lub ntiaj teb cov ntaub ntawv tus nqi tshiab rau DML lasers.DML lasers yog qhov tseem ceeb rau cov nqi qis, kev siv ceev ceev xws li cov ntaub ntawv chaw sib txuas.Pab pawg DML tau ua tiav cov ntaub ntawv xa tawm ntau dua 400 Gbit / s dhau qhov txuas 15-km, teeb tsa lub ntiaj teb cov ntaub ntawv. Tsis tas li ntawd, cov kws tshawb fawb ntawm Nokia Bell
Labs tsis ntev los no tau ua lwm yam kev ua tiav loj hauv kev sib txuas lus kho qhov muag.
Cov kws tshawb fawb Roland Ryf thiab pab pawg SDM tau ua tiav thawj qhov kev sim ua tiav siv qhov chaw faib khoom sib faib (SDM) thev naus laus zis ntawm 4-core txuas-core fiber ntau hla 2,000 mais.Qhov kev sim ua pov thawj tias kev sib txuas cov tub ntxhais fiber ntau yog technically ua tau thiab muaj kev sib kis tau zoo, thaum tswj kev lag luam tus qauv 125um cladding txoj kab uas hla.
Pab pawg tshawb fawb coj los ntawm Rene-Jean Essiambre, Roland Ryf thiab Murali Kodialam tau nthuav tawm cov txheej txheem tshiab ntawm kev hloov kho uas tuaj yeem muab kev txhim kho kab thiab tsis yog kab sib kis ntawm kev sib kis ntawm cov nkoj hauv qab ntawm 10,000km.Cov hom kis tau tus mob yog tsim los ntawm lub neural network thiab tuaj yeem ua tau zoo dua li cov hom qauv (QPSK) siv nyob rau hauv niaj hnub submarine cable systems.
Cov kws tshawb fawb Junho Cho thiab nws pab neeg tau ua pov thawj los ntawm kev sim ua kom muaj kev txwv tsis pub siv hluav taws xob, los ntawm kev siv lub neural network los ua kom zoo dua qhov nce shaping lim kom ua tiav lub peev xwm nce, lub peev xwm ntawm submarine cable system tuaj yeem nce 23%.
Nokia Bell Labs tau mob siab rau tsim thiab tsim lub neej yav tom ntej ntawm kev sib txuas lus kho qhov muag, tsav kev txhim kho ntawm physics, cov ntaub ntawv tshawb fawb, lej, software, thiab kho qhov muag thev naus laus zis los tsim cov kev sib txuas tshiab uas hloov kho rau cov kev hloov pauv, thiab dhau mus dhau qhov kev txwv niaj hnub no.
Post lub sij hawm: Jun-30-2020